Working with the 555 555 is used for producing a clock (square wave) at a desired frequency. It can be used in various ways like the astable mode‚ monostable mode etc. Here‚ we deal with the astable operation of 555. Astable mode ensures that the 555 is self-triggered & so‚ it acts as a multi-vibrator. Let us look into the working of 555 in astable mode: These are the connections needed to make the 555 chip run in the ‘astable’ mode. The pin numbers are given in circles. Note the
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Chapter 1-3: 1. B. a ball rolling down a hill 2. A. 0 3. C. Natural and violent 4. B. smoke rising up into the air 5. B. Inertia 6. C. increases 7. D. Report the findings 8. C. Physics is about the nature 9. B. Nikola Tesla Chapter 4-5: 1. B. 0 km/hr 2. D. 10m/s^2 3. B. 20 m/s 4. A. 1s 5. C. 50m/s 6. D. 2.5m/s^2 7. B. the same location 8. C. 141.1m 9. A. 2km/hr 10. A. the first kick Chapter 6: 1. F. if an object has zero.. 2. F. Pressure and force 3. T. In the absence
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8th physics light reflection refraction eyes defect and dispersion The ray of light which falls on the mirror surface is called incident ray. The point at which the incident ray strikes the mirror is called the point of incidence. The ray of light which is sent back by the mirror is called the reflected ray. The ‘normal’ is a line drawn at right angles to the mirror surface at the point of incidence. The angle between incident ray and normal is called the angle of incidence. The angle between
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The Physics of Rainbows As we are coming down to the final weeks of winter‚ the days are getting longer‚ and it is slowing starting to warm up. We are all looking forward to springtime‚ with its promises of flowers and rain. Along with this rain brings reminders of rainbows. As Donald Ahrens says in the Meteorology Today magazine‚ “rainbows are one of the most spectacular light shows observed on earth (About).” In fact‚ one of the best ways to view a rainbow at it’s utmost
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The Physics of Badminton Gerard Ramos Physics 4A Prof. Scott Hildreth I would like to start off with a light introduction to the sport of Badminton. Badminton is a sport that isn’t too popular in the United States; some people would even say that it shouldn’t even be called a “sport”. The majority see badminton from a “back-yard sport” point of view‚ part of this is due to the lack of actual badminton court facilities in America‚ also because it’s a bit expensive to play. Badminton is not
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Trip Report Yorgos Amanatidis This is a trip report for the Web Science Conference 2009 (WebSci’09) that took place from the 18th to the 20th of March 2009‚ in Athens‚ Greece. Location: The Conference was held at the “Hellenic Cosmos” complex of the Foundation of the Hellenic World. Hellenic Cosmos was indeed very suitable for such an event. The place was technologically equipped‚ the location was easily accessible for me‚ both by public transportation and by car‚ with adequate parking space. Although
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1 November 2009 Paper #2 Assignment What is life like on the global assembly line? In the article “Life on the Global Assembly Line” Barbara Ehrenreich and Annette Fuentes did a very good job of portraying what was really going on in the lives of women working in an assembly line in Third World countries. I felt like the authors were not happy about what the corporations were doing. I think that the corporations are like a hungry dog that never could be satisfied with anything. I only disagree
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________________________ Date ___________ Block ___ Electric Currents Review 1) When work is done on a positive test charge to move it from one location to another‚ potential energy ______________ (increases‚ decreases) and electric potential _____________________ (increases‚ decreases). 2) When a positive test charge naturally moves from one location to another (without the exertion of a non-conservative force)‚ potential energy _________________ (increases‚ decreases) and electric potential ______________ (increases
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1. Why did Lincoln’s early international expansion efforts fail? I think that the main reason why Lincoln’s early international expansion efforts fail is that company has lack of international experience. Therefore they made a lot of mistakes while they were trying to expand the company’s international manufacturing presence. The first mistake was that they tried to implement their incentive system instead of the system that existed in acquired plants. Willis didn’t take into account the cultural
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3. Recent technological developments have allowed greater use of the electromagnetic spectrum 1. describe electromagnetic waves in terms of their speed in space and their lack of requirement of a medium for propagation In space (a vacuum) electromagnetic waves travel at the speed of light‚ a constant equal to 3.00108ms1. Unlike sound waves‚ electromagnetic waves do not vibrate particles‚ therefore they do not need a medium (substance) to propagate (move). 2. identify the electromagnetic wavebands
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